cliffybabe

Hi Guys

I have just got a bottle of water wetter from redline and it states it can bring the engine temp down by 20o any ideas if this would damage my car?

www.redlineoil.com is the site this is on

Thanks

Neil

RJC

I doubt it would do any harm but if your car is still under warranty I'd wait as MB does not take kindly to additives.

AMG///Merc

I recently added some to my 03 CLK55, but I can't say that I've noticed any difference. I get the impression from their website that the Watter Wetter doesn't really "work" until the engine coolant is approaching it's boiling point as it's designed to reduce the coolants surface tension so that the air bubbles that form at localized hot spots are smaller (Larger air bubbles displace the coolant, and hence it's cooling capaqbility). Under normal operating temperature, which is well below boiling point**, I don't think the Watter Wetter really does anything. I believe that it's more of a safe gurard against overheating...


Best regards,
Matt


** boiling point in a pressurized cooling system is much higher than the normal 100C/212F, and I believe that it's 280F...

billyhead1

OK, here I am resurrecting a thread from 2005 - anybody have recent experience with Water Wetter?

I've had some recent cooling system work done and my indy had to drain fresh coolant out of my car and then put it back in, and then refilled with water.

That being said, I am not exactly sure if we are at 50-50 or not, so a little extra corrosion and temp protection would probably be helpful. What do you guys think? @Glyn, is this an area of expertise for you?

TIA

Bill

Frank Rizzo

What state do you live in?

If you are in an area with freezing temps in the winter you will have some problems….

I use it in my Mazda Miata track car.

Dr Matt

I ran it in my Lightning intercooler and it dropped air charge temps by a few degrees. Still not as effective as ice in the reservoir tank though so I actually ran it in winter, not summer.

billyhead1

I should clarify, I am talking about Water Wetter in addition to the MB coolant (50-50) mix in my CLK. Just wondering if any potential benefits or downsides.

@Frank, thanks - I run water wetter and water in my BMW track car, too!

Frank Rizzo

Billy
if you mix it with coolant, it won't do much - if anything. WW is really designed for water only in the cooling system. It helps lube the water pump as well as reduce surface tension of the water to help transfer heat better.

As stupid as it sounds, "coolant" actually interferes with heat absorption and rejection. If you have track overheating problems - Your best bet would be to use water only - but that is not good for the water pump....So water wetter helps that out, but I get the exact same results with 20% FOMOCO GT40 coolant and 80% water.

If you live in a freezing climate, you need coolant in the winter to keep the system for freezing, so my scenario is a summer only/track only type of deal.